公开(公告)号：US07282669B2

公开(公告)日：2007-10-16

申请号：US10207088

申请日：2002-07-30

申请人： Kazuho Tatematsu ,  Masahiro Konishi ,  Takeshi Yamaguchi

发明人： Kazuho Tatematsu ,  Masahiro Konishi ,  Takeshi Yamaguchi

IPC分类号： F23Q7/22 ,  H05B3/44

CPC分类号： H05B3/148 ,  F23Q7/001 ,  F23Q2007/004 ,  H05B3/141 ,  H05B2203/027

摘要： A ceramic heater 1 includes a silicon nitride ceramic substrate 13 and a resistance-heating member 10 embedded in the silicon nitride ceramic substrate 13 . The silicon nitride ceramic substrate 13 contains oxygen derived from a sintering aid at an average concentration of 0.4–3.2% by weight in a surface layer portion extending from the surface thereof to a depth of 1 mm. The ceramic heater 1 can be manufactured by firing through hot pressing. A firing jig for use in a firing process has an SiC—C composite layer which is formed therein along the surface of cavities thereof while having a predetermined depth as measured from the cavity surface.

摘要翻译： 陶瓷加热器1包括氮化硅陶瓷基板13和嵌入在氮化硅陶瓷基板13中的电阻加热部件10。 氮化硅陶瓷基板13在从其表面延伸到1mm深度的表层部分中含有平均浓度为0.4-3.2重量％的来自烧结助剂的氧。 陶瓷加热器1可以通过热压烧制来制造。 用于焙烧工艺的焙烧夹具具有沿其空腔表面形成的SiC-C复合层，同时具有从空腔表面测量的预定深度。

公开(公告)号：US5948306A

公开(公告)日：1999-09-07

申请号：US826144

申请日：1997-03-27

申请人： Masahiro Konishi ,  Kazuho Tatematsu

发明人： Masahiro Konishi ,  Kazuho Tatematsu

IPC分类号： F27D99/00 ,  H05B3/14 ,  H05B3/48 ,  H05B3/10

CPC分类号： F27D99/0006 ,  C04B35/581 ,  C04B35/584 ,  C04B35/593 ,  C04B37/026 ,  H05B3/141 ,  H05B3/48 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3231 ,  C04B2235/3232 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3427 ,  C04B2235/3813 ,  C04B2235/3839 ,  C04B2235/3843 ,  C04B2235/3847 ,  C04B2235/3886 ,  C04B2235/3891 ,  C04B2235/442 ,  C04B2237/123 ,  C04B2237/36 ,  C04B2237/368 ,  C04B2237/40 ,  C04B2237/592 ,  C04B2237/84 ,  C04B2237/86 ,  F27D2099/0008 ,  H05B2203/027

摘要： A ceramic heater is formed by embedding a heating element in a ceramic body. A ceramic body is formed from a sintered basic ceramic component containing an adjustment ceramic component in the range of 1 to 3% by weight. The adjustment ceramic component includes at least one component selected from the group consisting of metal silicate, metal carbonate, metal boride, and metal nitride each of which is larger in thermal expansion coefficient than the basic ceramic component.

摘要翻译： 通过将加热元件嵌入陶瓷体中形成陶瓷加热器。 陶瓷体由含有1至3重量％范围内的调节陶瓷组分的烧结碱性陶瓷组分形成。 调整陶瓷成分包括选自金属硅酸盐，金属碳酸盐，金属硼化物和金属氮化物中的至少一种以上，其热膨胀系数比碱性陶瓷成分大。

公开(公告)号：US5883360A

公开(公告)日：1999-03-16

申请号：US60474

申请日：1998-04-15

申请人： Kazuho Tatematsu ,  Masahiro Konishi

发明人： Kazuho Tatematsu ,  Masahiro Konishi

IPC分类号： F23Q7/00 ,  H05B3/14 ,  H05B3/48 ,  F23Q7/22

CPC分类号： H05B3/48 ,  F23Q7/001 ,  H05B3/141 ,  F23Q2007/004 ,  H05B2203/027

摘要： A ceramic heater includes a silicon nitride ceramic and a heating element embedded in the ceramic. The heating element is formed through use of, as a main component, a silicide, carbide, or nitride of at least one element selected from the group consisting of W, Ta, Nb, Ti, Mo, Zr, Hf, V, and Cr. The ceramic includes, as sintering aids, 1 to 20% by weight of at least one rare earth element calculated as an oxide thereof; 0.5 to 8% by weight of V (vanadium) calculated as V.sub.2 O.sub.5, and, 0.5 to 8% by weight of at least one Va/VIa group element selected from the group consisting of Nb, Ta, Cr, Mo, and W calculated as an oxide thereof. The proportion in total of vanadium and the Va/VIa element is 1 to 10% by weight calculated as oxides. The ceramic heater has excellent high-temperature strength and acid resistance.

摘要翻译： 陶瓷加热器包括氮化硅陶瓷和嵌入在陶瓷中的加热元件。 通过使用选自W，Ta，Nb，Ti，Mo，Zr，Hf，V和Cr中的至少一种元素的硅化物，碳化物或氮化物作为主要成分来形成加热元件 。 所述陶瓷作为烧结助剂，含有1〜20重量％的作为其氧化物计算的至少一种稀土元素; 0.5〜8重量％的以V2O5计算的V（钒），0.5〜8重量％的选自由Nb，Ta，Cr，Mo和W组成的组中的至少一种Va / VIa族元素，计算为 其氧化物。 钒和Va / VIa元素的总比例为氧化物计算的1〜10重量％。 陶瓷加热器具有优异的高温强度和耐酸性。

公开(公告)号：US06274855B1

公开(公告)日：2001-08-14

申请号：US09441207

申请日：1999-11-16

申请人： Kazuho Tatematsu ,  Shindo Watanabe

发明人： Kazuho Tatematsu ,  Shindo Watanabe

IPC分类号： H05B310

CPC分类号： H05B3/141 ,  H05B3/148 ,  H05B2203/018 ,  H05B2203/027 ,  Y10T29/49083

摘要： A ceramic heater of required heating properties is made available in that adjusting elements made solid in an electric conductive element are added other than electric conductive elements of an heating resistor in a ceramic heater. Accordingly, resistance temperature coefficient is changed, not largely changing other properties of heating materials. The heating resistor may be used to a double frame ceramic heater, whereby deviations of baking conditions may be made little to heighten adherence and avoid breakage at grain boundaries

摘要翻译： 提供了所需加热性能的陶瓷加热器，其中在陶瓷加热器中除了加热电阻器的导电元件之外，还添加了导电元件中固体的调节元件。 因此，电阻温度系数发生变化，不会在很大程度上改变加热材料的其它性能。 加热电阻器可以用于双框架陶瓷加热器，由此可以减少烘烤条件的偏差，以增加附着力并避免在晶界处的断裂

公开(公告)号：US6111223A

公开(公告)日：2000-08-29

申请号：US261650

申请日：1999-03-03

申请人： Kazuho Tatematsu

发明人： Kazuho Tatematsu

IPC分类号： F23Q7/00 ,  H05B3/14 ,  H05B3/48

CPC分类号： H05B3/141 ,  F23Q7/001 ,  H05B3/48 ,  H05B2203/027

摘要： A ceramic heater is composed of an insulating ceramic heater body, a metallic sleeve fitted onto the ceramic heater body, a resistance heating element formed of a metal or a nonmetallic material and embedded in the ceramic heater body, and electrode leads. The length of a portion of the resistance heating element located inside the metallic sleeve is set equal to or greater than the length of a portion of the resistance heating element located outside the metallic sleeve. The resistance heating element has a heating portion which has a resistance per unit length which is twice that of the remaining portion or greater. The heating portion has a length 30 to 100% the length of the portion of the resistance heating element located outside the metallic sleeve.

摘要翻译： 陶瓷加热器由绝缘陶瓷加热器主体，安装在陶瓷加热器主体上的金属套筒，由金属或非金属材料形成并嵌入陶瓷加热器主体中的电阻加热元件和电极引线构成。 位于金属套筒内部的电阻加热元件的一部分的长度被设定为等于或大于位于金属套筒外部的电阻加热元件的一部分的长度。 电阻加热元件具有加热部分，其具有每单位长度的电阻，其为剩余部分的两倍或更大的电阻。 加热部分的长度为位于金属套筒外部的电阻加热元件部分的长度的30至100％。

公开(公告)号：US5264681A

公开(公告)日：1993-11-23

申请号：US832315

申请日：1992-02-07

申请人： Shunkichi Nozaki ,  Yasuhiko Suzuki ,  Kazuho Tatematsu ,  Masakazu Iwai ,  Kiminori Horiki

发明人： Shunkichi Nozaki ,  Yasuhiko Suzuki ,  Kazuho Tatematsu ,  Masakazu Iwai ,  Kiminori Horiki

IPC分类号： F23Q7/22 ,  H05B3/12 ,  H05B3/28 ,  H05B3/44 ,  H05B3/10 ,  H05B3/50

CPC分类号： H05B3/283 ,  F23Q7/22 ,  H05B3/12

摘要： The invention relates to a ceramic heater for use, e.g., as a glow plug for a diesel engine or as an igniter for an oil or gas burner. The ceramic heater has a nonoxide ceramic body having a heating part and a supporting part and a heating resistor embedded in the heating part of the ceramic body. The material of the heating resistor is W, WC, tungsten alloy or a metal nitride such as TiN or TaN. According to the invention the heating part of the ceramic body is formed of aluminum nitride ceramic, which is high in heat conductivity and resistant to oxidation at high temperatures, at least in a core region in contact with the heating resistor, and the supporting part is formed of silicon nitride ceramic which is low in heat conductivity at least in a surface region. The ceramic body is made by uniting a heating part entirely formed of aluminum nitride ceramic and a supporting part entirely formed of silicon nitride ceramic with interposal of a joint part which is formed of mixed ceramic of aluminum nitride and silicon nitride with a gradient of the proportion of aluminum nitride to silicon nitride, or by thoroughly covering a core formed of aluminum nitride ceramic with silicon nitride ceramic.

摘要翻译： 本发明涉及一种陶瓷加热器，其用于例如用作柴油发动机的电热塞或用作油或燃气燃烧器的点火器。 陶瓷加热器具有非氧化物陶瓷体，其具有加热部分和支撑部分以及嵌入陶瓷体的加热部分中的加热电阻器。 加热电阻体的材料为W，WC，钨合金或TiN，TaN等金属氮化物。 根据本发明，陶瓷体的加热部分由氮化铝陶瓷形成，该氮化铝陶瓷至少在与加热电阻器接触的芯区域中具有高导热性和耐高温氧化性，并且支撑部分是 由至少在表面区域中导热性低的氮化硅陶瓷形成。 陶瓷体通过将由氮化铝陶瓷完全形成的加热部分和由氮化硅陶瓷整体形成的支撑部分结合在一起，该接合部分由氮化铝和氮化硅的混合陶瓷形成的接合部分以比例的梯度 的氮化铝到氮化硅，或者通过用氮化硅陶瓷充分覆盖由氮化铝陶瓷形成的芯。